RadioShack customers can now pick up the Samsung Instinct at one of their 4,400 stores. RadioShack is offering a Labor Day weekend exclusive price on the instinct for $99.99. The deal will be available only to New lines of service with a 2 year agreement, and Sprint's Simply Everything Rate plan. Wireless customers choosing to upgrade their service will receive the phone for $129.99. Upgrades will also require a 2 year contract extension, Sprint's Simply Everything Rate Plan. Upgrades are subject to Sprint's Upgrade policy. The special will begin Friday August 29th, and continue through Labor Day.